Slit NSOM Imaging using Nanoscale Photodetector

Matityahu Karelits, Yaakov Mandelbaum, Avraham Chelly, Avi Karsenty

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

As part of the sensitivity evaluation of a new sensor designed for Near-field Scanning Optical Microscopy (NSOM) and for detection of evanescent waves, advanced 2D simulations have been conducted: The photodetector device, shifted across a vertically oriented Gaussian beam, itself passing through a slit set on an opaque barrier, may collect the projected light on its top subwavelength aperture. The device is silicon Schottky nanoscale diode shaped as a truncated pyramid photodetector, and sharing a subwavelength slit aperture. Using Finite Elements Method (FEM) electro-optical simulations have been conducted. These results are promising towards the fabrication of a new generation of photodetector devices.

Original languageEnglish
Title of host publication2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538663783
DOIs
StatePublished - 2 Jul 2018
Externally publishedYes
Event2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018 - Eilat, Israel
Duration: 12 Dec 201814 Dec 2018

Publication series

Name2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018

Conference

Conference2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018
Country/TerritoryIsrael
CityEilat
Period12/12/1814/12/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

  • 2D simulations
  • FEM
  • NSOM
  • evanescent waves
  • photodetector
  • silicon
  • slit sub-wavelength aperture

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